Automatic shoveling-machine.



PATENTBD AUG. 11, 190.8.

AUTOMATIC SHOVBLING MACHINE.

APPLICATION FILED OGVT. 28,1906.

6 SBBETB-SHEET- l.

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\ PATBNTED AUG. 11,` 1908. c. G. HAWLBY. 'AUTOMATIC SHOVELING MACHINE.

APPLIcAnomD-ocr, 26,1906.

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In www" PATENTBD AUG.*11, 1908.

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'jizz/mier c. "G. HAWLEY. AUTOMATH; SHOVBLING MACHINE. APVLIGATIOW FILED 00T 26, 1906 l' W1' messes m PATENTBD AUG. l1, 1908.v

c. G. HAWLBY.

AUTOMATIC SHOVELING MACHINE. i

APPLICATION FILED OCT. 26. 1905.

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l AnntitrnsTAES PATENT OFFICE? f 'CHARLES GILBERT IIAWLIIY, O1" CHICAGO, ILLINOIS.

AUTOMATIC SHOVELINGXACHINE.

To all lwhom it may concern:

Be it known that I, CrrAnLi-:s GILBERT IIAwLEY, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a certain new, useful, and Improved Automatic Shovcling-Machine, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to machines for mov-4 ing loose material, such as sand, coal, ore and the like, and has particular reference to improvements in machines of that class known as automatic shovels or loaders employed for loading loose material into wagons, Acars or other receptacles.

rl`he object of my invention is to provide a relatively small compact, portable machine that shall be capable of taking loose material from the ground, elevating it a sullicient distance and discharging it into a suitable receltacle.

`he particular objects of the invention are to provide an automatic shoveling or loading machine which shall be of less weight than other machines of the same capacity, which shall occupy less ground space and be of less height.; which may be opera-ted with less power, and which may be easily and accurately controlled in operation.

rThe objects relating to the details of construction of such machine are, briefly, to provide an automatic shovel in which the material after heilig lifted from the'ground, shall be carried bodily to a higher point instead of being pushed upwardly upon an inclined surface as in other machines, my purose in this regard being to avoid frictional osses and thereby lessen the expenditure of energy ;-further to provide a machine wherein the shoveling member shall be. located at the lower forward end of the machine and shall be confined to that part of the machine in contradistinction to those loading machines in whichis used an endless inclined conveyer, equipped with heavy shoveling 'ings or arms, to the end that the shoveling portion or member of the loader may be of small size and of light weight;further to provide a shoveling machine wherein the elevator or conveyor sha-ll be uppermost and shall serve to cover and protect the motor and driving mechanism, it being especially desirable that such a machineshall be of minimum height and that the center of grav- Speccation of Letters Patent. Application filed October 26, 1906. Serial No. 340,685.

is a section on Patented Aug. 11, 1908 ity thereof shall be as low as possible for sake of stability ,#further to provide a machine of the character outlined which shall be selfpropulsive and which may be operated' and controlled by a single person stationed upon the machineg-urther to provide an automatic loader or shovel in which the elevating mechanism shall be distinct from the digging or shoveling mechanism proper and which shall he so constructed that said mechanisms lmay be operated independently, and, if desired, at different speeds; and further to )r0- vide a machine ofthe class described which may be constructed, operated, and kept in repair at less cost than others.

vStill further objects of my invention will appear hereinafter.

Broadl f defined, my invention comprises an automatic shovel or load-ing machine which is characterized by a rotary shovel or winged rotor adapted to shovel loose material from the mass or pile to be moved; and an inclined carrier or conveyor arranged to receive the material from said rotor at a point close to the ground and to elevate it mto a car or the like, or upon another conveyer in case thematerial is to be carried to a distant point. i

My invention also consists in the various novel constructions and combinations 0f` parts hereinafter described pointed out in the claims.

My invention will be more readily understood upon reference to the accol-npanying drawings, forming a part of this specification, and in which i Figure 'I is a side elevation of a machine embodying my invention; Fig. II is a plan view thereof; Fig. III is a front elevation of the machine, on an enlarged scale; Fig. IV is a similar view with the rotor, shoe and conand particularly veyer removed; Fig. Y is a plan view of the rear portion of the machine, illustrating the driving and controlling mechanism, the conveyer and itsframe being removed; Fiv. VI the une vr-vr pf rig. um same being shown on an enlarged scale and the wings of the rotor being removed; and Fig. YII is a detail view illustrating the means employed for raising and lowering the forward end or shoe of the machine.

In these drawings I have illustrated apreferred embodiment of my invention, but it will be evident that the essential features of the invention may be embodied in a shoveling machine. which will be quite diiferent in ...ww N..

general appearance and in details of coiistruet-ion. VWThe principal members of the machine `herein illustrated are, a low frame which is 5-mouiited on suitable propelling and steering wheels; atttionary shovel portion or shoe arranged at the forward end of the frameand preferably constituting a rigid element thereof; a rotor or multiple rotary shovel mounted ,'10 upon said shoe; an inclined conveyer ar- 1.5 beneath said conveyor, for operating said rotor and said conveyer, and for driving or moving the machine as a whole.

The frame of the machine comprises a rigid structure composed of standard chan- Y 29 nel or I-beams, A-A, an arch-bar, B, a lied plate, C, traction wheel frames, DWD, and the shoe, E. lhe parts B, C, D and E are preferably metal castings, being of irregular shapes. The frame is mounted upon t-lie steering wheel or wheels, F, arranged beneath the arch-bar, B, and upon wheels, G-G within the frames, D-D. The driving motor here shown as an electric reversible motor, H, is placed upon the bed plate, C and 30 the Whole ot' the mechanism employed for driving the movable elements of the machine and for controlling the operations thereof is likewise located upon said bedplate, C. The rotor, I, is mounted upon the shoe, E, and is provided with a plurality of arms, adapted to sweep the material from the shoe, E. The conveyer which I prefer to employ for elevating the material from the rotor is preferably a troughing belt, J mounted upon a frame, K, of well-known construction and occu lying an inclined oosition upon the frame witli its lower end beneath the upper edge, E', ofthe shoe, and its upper end extending rearwardly beyond the rear end of the frame to overhang a car or bucket or a second eonveyer, L, shown in .F ig. I.

.ln operating the machine the motor is lirst utilized to drive the shoe or shovel proper into the iiiateiial,-coal, ore, or the like, after which the rotor maybe started into rotation to sweep the material upward upon the lower end of the conveyor belt., which being also driven by the motor, carries the material upward and discharges it at the rear end of the machine. The levers M, N, Q, shown in Figs. and II of the drawings, together with the steering wheel, l), and the controller, Q, enable the man standing upon the frame at the side of the coiiveyer to operate the machine and control thel action of its parts as required in the course of the work. By means of a lever, R, the operator is enabled to raise and lower the shoe as required by the nature of the work to be done and the su rtace of the ground operated over.

The steering wheel, F, is preferably divided i into two small wheels, mounted on a single shaft or yoke and a center pin l" is held in' tions oll the frames, l), constitute jacii stand-- a rds, G", in which screw jacks, orcquivalent devices, D are arranged. 'lhe stationary member of each jack comprises a vertical screw, 2, having a frainesustaining collar, 3 and provided with a bevel gear, 4, at its nppcr end.. The movable member, :5, of the jack is internally threaded Ato receive the scre\v 2, and is non-rotativcly ixed upon or with relation to the respective journal box, G. By operating the four jacks, the frame ol the machine may he raised and lowered upon the traction wheels. For operating them simultaneously, [employ a single shalt, yt', mounted in bearings, t3-t`i on the upper ends of the frames, l), and )rovided with bevel gears, 7, meshing with tlhe gears, 4, of thc jacks. '.l`he o )ei-ating lever, R, is connected with the sliai't, lt", by a reversible ratchet device, R, whereby the shaft, R, may be turned in either direction to raise or lower the acks.

The frame members, A, have their forward ends` secured between the parts of the frames, D, and their rear ends riveted or bolted to the ends of the arch bar B. 'lhe bed plate, C )relerahly rests upon the lower flanges of the eams, i\-A to -which beams it is rigidly secured. The shoe, E, is provided with rearwardly extending arms, ll, bolted or riveted to the frame, D, whereby the shoe is sustained. It is not absolutely necessary that the shoe shall be rigidly attached to the frame or that the trame shall be vertically movable, as a means of elevating the shoe, as it will bc obvious that the heavy shoe may have its own sustaining wheels or rollers and that the. latter and their hearings may be so constructed as to enable the desired adjustment of the shoe. rlhe construction of such a shoe and its manner of operation is so obvious that I have not deemed it necessary to illustrate the saine in detail.

lhc shovel or shoe herein shown is a metal casting rigidly but. detachably secured to the frame of the machine and characterized by two conical surfaces, E2 and E3. rThe surface, E2, is a section of an inverted obtuse cone, intersecting the cone E3, at theline, Ei The cone, E3 is truncated at a point near its base and is closed across the top by a wall, E, best shown in Fig. VI. The lower'part of the inverted cone, E2, is cut away upon the line of intersection with a horizontal plane, (see line,

1 to the base of the small cone, E3 but maybe of less depth in machines wnich are especiall f designed for certain free running materiali. The cones forming the shoe are inclined or tilted forward with the result that the rear side of the shoe is elevated sufficiently to ad- -mit the lower end of the convcyer, J, beneath the shoe. The material is swept upward from the gap, X, in the shovel by the wings or arms of the rotor and is discharged over the rear edge, E", of the shoe. Arms or wings, E7, formed upon or attached to the rear aide of the shoe and an abrupt inclined wall, E", which drops from said edge, EX, form a receiving ocket Y whereof the conveyer, J, forms tie bottoni. The conveyer operates at comparatively high speed and carries away the material as rapid y as it is de iosited in said pocket. I prefer that the wallls, E3, E3 and E3 of the shoe shall be inte gral, and further in casting this shoe I preferaluly core out the lower portion thereof to form the gear housing, E9 and El", also t-lie sidel walls,E11 and E" and the front wall, E13, which latter will be referred to again herein. The intake or upwardly inclined side, E3, of the shoe is preferably provided with a more abru )tly inclined marginal portion, E`,

li serves to retain the material upon the shoe.

The rotor comprises a plurality of wings, I. and a truncated cone or substantially conical part, I3, which latter ma f be considered an extension of the centra cone, E, and has a bottom flange, I3, overhanging the cone, E3, to close the joint between the stationary and rotating cones. T he wings, I take their form from the angle between the cones, E'2 and E3. They are attached to the rot-:ny cone or hub, I3 and extend downwardly therefrom substantially into contact with the surfaces of the shoe. If desired, the wings may be integral with the part, I3, but for various reasons I prefer that they shall be separate parts, readily attachable to or detachable from the cone or hub, I2. As shown in l-`igs. Il, III, and VI, each wing is provided with a perpendicular portion, I3, and is strengthened by an integral 1in or brace, l. I' )on the base provided by the portion, I3, forni two bulbous ribs, I5, which fit similarly formed grooves or cavities, l, in the portion, I3. Each wing is thus `slidahly intcrlocked with the rotary cone or hub; little labor is involved in assembling these parts or in removing a broken wi'ng from the hub. A special advantage of this construction is that each wing is free to nieve vertically in thehub at times when a descending wing strikes squarely upon the the gap of the shovel, a not infrequent occurrence, which otherwise would result in .either stopping the rotor or damaging the same. The rotor as a whole is feathered upon a heavy upright shaft, I7, held -in a central bearing, iii the cone top, E5. (See Fig. VI.) IS represents the feather re'- ferred to; this preferablv is the onlvmcan's of connection between the driving shaft, I, and the rotor, hence the rotor as a whole is vertically movable upon its shaft and may be readily lifted therefrom. A lubrieator, I, on the u iper end of I7, and communicating with' channels in said shaft supplies grease or oil to the bearings of the shaft. A

cap I, on the Iiub, I3, excludes dust fromv the rotor bearings.

The lower end of the shaft, I7, is equipped with a large gear wheel, I, and the rotor is driven by a. pinion, T, on the cross shaft, T iii the lower part of the shoe. The lower `end of the cone, E is closed by a flanged disk, E, suitably secured thereto and containing bearings for the shaft, T3'. The shaft has other bearings in the housing, E. and E10, and its ends extend into said housing. (See dotted lines in Figs. I and II and full lines in Fig. VI.) The power of the motor is communicated to the rotor through the longitudinal shaft, T, and worm gearing comprising a worm, T3, on tho shaft T, and a worm gear, T, on the shaft, T3. The gears, T3 and T, are. inelosed iii the housing, E, and said housing being )aitly filled with lubricant, said gears and tlic shaft beaiing in the housing are ell'ectiially lubricated.

It will be noted that the descending side of the shoe terminates in an abrupt front wall, E13, and it will be obvious that at the. moment that a rotor wing passes this point, the wing is a considerable distance above 'the surface which is swept by the iotor.

To prevent the lodgment of large chunks of ore, coal or the like against the wall, E, and hence beneath the descending wings, I employ a reci irocating member, V, termed a. kicker. This projects through an opening in the face, En; it preferzihly swings from a. center, Y', beneath the shoe, and is operated by a link, V3, and a. crank, V, which latter is driven by gears, VV5, arranged at the end of thc shaft T`-, within the housing, El". Obviously the kicker, V, Inay be arranged to `reciprocate in any dcsired manner and its structure may be readily modified. Its operation is timed in such manner that the kicker moves forward and then returns just before the arrival of a rotor wing,r above it. Thus the space in advance of the descending wing is constantly cleared and the material islroperly gathered in the gap of the shoe rear y to be picked up by the rotor wings. When relatively tine material is being handled by the lmachine the clearing device or kicker may be thrown out of gear, but in handling coarse pensed with.

materials containing h eavy chunks it is of great advantage to operate the kicker continuously. Experiments which I have conducted with wings which are pivotally mounted upon the hub of the rotor and which arc actuated vertically hv a cam located in the shoe demonstrate that it is entirely feasible to thus construct a rotor, and in such cases the kicker, V, may be dis- Biit a rotor having pivoted wings necessarily contains a large number of jointed members and joints which are diflicult to maintain, and while such a device ma. f be ieadily employed upon the inclined shoe of my machine, I much prefer a rotor of the construction illustrated; nevertheless, certain materials which are not gritty admit of the use ef a )ivoted wing rotor, and I desire it to be um crstood thatl I distinctly reserve the subject-matter herein disclosed but not shown in the drawings for a separate application for patent.

The shaf t, T, which serves as a connection between the motor and the rotor, is supported in suitable hearings upon the bedilate, C; a friction cl itch, T5 is interposed in the shaft, T, which is -,in two sections. This friction clutch isopciated by means of the lever, M, and by reasonlof its use upon the high speed shaft, T (notefthc great reduction between the shafts T aiid`-T2) may be of small size, a distinct advantli'ge in constructing a. machine of this character. The shaft, T. is driven directly from the )hater II, by sprocket gears I and a belt, T, as slio'wiixin Figs. I, II and V,

By discngaging the incirbers of the clutch, T", the rotor may be disconnected from the motor; the further oflicefs (it the clutch, T5, are to ierinit theniotion driven section thereof to slip in case the rotor ei'icoiinters` chunks of material tlierehy avoiding breakages; and to permit the rotor to be pulsated to dislodge heavy masses or to start slowlv, either of which operatiiins may be accomplished by manipulating the. clutch lever, )L By ieversine' the iiiotoi, II, which may be accom- )lished by the controller, Q, the rotor may `vantage attaching to the worm gear drive is 115 )e turned in the reverse direction-but this is rarely necessary.

U, represents the conveyer driving shaft which is operated by a chain belt, U', extending across froin the main driving section, "7, of the shaft, T; U2 represent changespeed'gears, operated by the levei, O, and whereby the. shaft, U, may be stopped and started and also operated at two i ill'ercnt speeds. At times it is desirable to stop the rotor and work the conveyer at low speed as when very heavy masses have been thrown upon the coiiveyer by the rotor. At other times the conveyor is operated at full speed. The foregoingr is equivalent to saying t iat I have found it advantageous to construct the conveyer in order that it may take care of the material furnished to it by the rotor under ordinary conditions and to operate the Y, conveyer inde )endcntly when made necessary by heavy lloads rather than to construct the eoiivcyer in such manner as to enable it to handle all loads'uiider all conditions. As herein shown, the machine constitutes a tlexi- A ble unit or mechanism capable of ready manipulation and control by the operator and adapted to meetall requirements acceptably Aand efficiently notwithstanding its small size and light weight. The shaft, J2, is mounted in the frame, K, or, if desired, in the walls of the shoe, lil, and is connected with the driv- 30 ing shaft, U, by means of a worm and worin gear, U3-U- (See Figs. I and II.) The conveyer which I prefer to employ is a troughing belt driven by means of the lower conveyer pulley, J, on shaft, J2, and ruiming g5 over troiighing rolls or idlcrs, J. The up )er end of the belt passes over a pulley or roller, J5, which is ad'iustable upon the frame, K. K2 and' 1U lare the` supports which sustain the conveyer.

The tract-ion wheels, G, are driven by.L heavy chain belts, G2-G2, ruiming over sprocket wheels arranged on the short shafts or axles of the traction wheels and upon the ends of the transmission shaft, S. This'l 95 transmission shaft is held in bearings', S', on*` the bed-plate, and is made in two sections, which are connected by different-iai gearing,

S2, the main portion of which is a worin gear. Meshing with this woiin ffear is a worm, S3, i 00 lprovided on the inclined shaft, S" that is connected with the motor b large and small bevel gears, Si and S, a c iitcliI S7, being in` -terposed on the motor shaft. This-clutch,

S7, is operated by means of the lever, N, and hy throwing the same into engagement with the motor the machine may he moved forward. Reverse motion of the machine may 5 be obtained by reversing the motor, H. As the traction wheels are driven by a worm gearing it is obvious that the machine may be driven forward with great force as is fren" r ueiitly required to drive the shovel beneath tihc pile of material to he handled. An' adthat the machine is locked in every position and no brake mechanism is required thereon.

The saine advantages will be apparent in the cases of the rotor and the conveyor, neither\ of which can be atleeted by the load when disconnected from t-lie motor.

I have herein shown both the rotor and the conveyor as driven from points beneath the shovel or shoe. This construction is practicable in large sizes of the machine, and

or a number of obvious reasons is )rcferred, but I desire it to be understood tiat these mechanisms may be driven from points above the same, and this method fsdriving them is most desirable in machines ot small 13o A follows:

The machine is advanced to theposition at which it is to begin work by coupling the motor'to the forward traction wheels and by guiding the machine by the steering device as described. when ithas reached the proper position, the clutch, S7, representing the traction wheelsv` is thrown out, bringing the machine to a stop and, through the inediuni of the worm gearing, locking the niachine so that it can move neit-lier forwardv nor backward until again propelled by the motor. .-Li this time the shoe, IC, islowered and will have been driven into or beneath the pile of material attacked.

In openaimg the machine upon free sliding or free loading materia-ls, the shovel may bc driven weii into the pile and the shoe may be lowered by means of level', lt, until it rests firmly on the ground, in which position, by reason of iis weight it eflectually anchors the machine. Obviously, however, the shoe may be held at-a fixed distance from the ground and its elevation changed from time to 'time according to the surface. traversed. 'hen the machine has been brought to a stop or while it is still in motion the conveyer is started by the throwing in of one of the clutches of the change gear, lU2,-usually that which imparts the higher speed to the conveyer- After the conveyor has been set .in motion Ehe rotor will be started by gradually'or slowly throwing the clutch, "1"", into action. The wings` ot the rotor successively clear the space before the shoe, and deposit the material into the pocket of the. conveyor, which latter being in movement, clevates the material and discharges it at the rear end of the machine. lf the rotor meets too great resistance. the clutch, T5, permits the automatic reduction of the speed of the rotor and the latter becomes capable of moving very heavy loads- If the mass engaged by a wing of the rotor is sullicient to stop the motor, the operator may pulsate or vibrate the rotor and thereby deliver successive dislodging shocks or' blows upon the material until the i'otor is free. this being accomplished by nianipulatiiig the clutch lever, N. Should the conveyer become overloaded, the iotor is stopped and the convcycr permitted to operate alone or at a reduced speed, as hereinbefore described.

As variifus modifications of my invention will readily suggest themselves to one skilled in the art. I do not confine the invention to the specific construction herein shown and described.

Having thus described my invention I claim asn-ew and desire to secure by Letters on upon an uprightaxis and adapted to i sweep the ground, and an inclined cenveyer adapted to receive material from said rotor scribed. l

3. An automatic lshoveling machine, comprisin g a wheeled frame, in combination with aninclined conical shvel or shoe thereon, la winged rotor upon said shoe and revoluble upon a substantially upright axis, to elevate material from the ground to the upper edge of said shoe, and means for receiving and conveying away material from the upper edge of said shoe, substantially as described.

4. An automatic shovelihg machine, coinprising a wheeled frame, in combination with an inclined shovel or shoe thereon, a winged rotor upon said shoe and revoluble upon a substantially upright axis, to elevate matcrial to the upper edge of said shoe, a pocket formed at the upper edge of shoe to receive said material, and a conveyor forming the bottom of said pocket to take the material therefrom, substantially as described.

5. In an automatic shoveling machine, a suitably supported shoe or shovel proper having a conical, inclined upper face, in combination with a winged rotor fitting said shoe and revoluble about a substantially' upright axis on said shoe, to elevate material from the ground to the upper edge of said shoe and an endless belt conveyor for receiving the material from said shoe, substantially as described.

6. In a shoveling machine a shoe or shovel proper, in combination with a i'otor mounted thereon, revolublc on an upright axis and comprising a hub and a plurality of shoveling wings` rigidly fixed thereon and a con- -veyer to receive material therefrom, substantially as described.

7. In a shoveling machine a shoe oi' shovel roper having an inclined, conical upper surace, an upright shaft centrally located in said shoe, a winged rotor mounted thereon and fitted to said shoe, means for revolving said rotor, and means for conveying materia away from the upper edge of said shoe or shovel, substantially as described.

8. In a shoveling machine, an invertedcone-like shoe or shovel proper forwardly inclined and having a receiving gap in itsI forward edge and a discharging gap in its rear upper edge, in combination with a winged rotor rcvohibly mounted on said slice and in shape conforming thereto, substantially as and for the purpose specified. 9. In a shoveling machine, an invertedcone-like shoe or shovel proper forwardly in.- clined and having a receiving gap in its forward edge and a discharging gap in its rear upper edge, in combination with a winged rotor revolubly mounted on said shoe and in shape conforming thereto, an inclined co'nveyer arranged te receive material from said shoe, and means for driving said rotor and said conveyor, substantially as described.

10. A shoveling machine comprising a wheeled frame, in combination with aninclined shovel or shoe at the forward end thereof, means for raising and lowering said shoe, a winged rotor revoluble upon an up- .right axis, and an inclined conveyor provided on said frame to receive material from said shoe, substantially as described.

11. In 'an automatic shoveling machine, a forwardly inclined concave shovel having a discharge gap in its upper edge, in coinbination with a relatively convex winged rotor mounted on said shovel and adapted to sweep material horizontally and upward into said gap, and a conveyor entering said gap to remove material therefrom, substantially as described.

12. In an automatic shoveling machine, a concave inclined shoe or shovel proper containing a central conical portion, in combination with an upright shaft in the latter, a hub mounted on said shaft above said central conical'portion of the shoe, and shoveling wings attached to said hub, substantially as described.

13. In an automatic shoveling machine, a concave inclined shoe or shovel proper, in combination with an upright shaft centrally located therein, a hub mounted on said shaft and shoveling wings detacliably secured to said hub. substantially as described.

14. In an automatic shoveling machine, an inclined shoe or shovel pro ier, in combina.- tion with an uprightrevoln le shaft, a hub located on said shaft, and a plurality of shoveling wings slidably interloeked with said hubv and normally rigid thereon, substantially as described.

15. In an automatic shoveling machine, an

inclined shoe or shovel proper, in combination with a winged rotor revoluble thereon, .and a kicker provided at the lower edge of the shoe for clearing the saine in advance of the rotor wings, substantially as described.

16. In an automatic shoveling machine, an inclined concave shoe or shovel proper having a receiving gap in its lower end or edge, in combination with a central upiight shaft, a winged rotor mounted thereon and adapted to sweep said gap and elevate material upon said shovel, and a kicker operable in said gap,

substantially as described.

17. In` anv automatic shoveling machine,

an inclined shovel, in combina-tion witlia mechanism having shoveling wings 'which descend upon one side of said shovel and elevate material upon the other side thereof, and a. kicker operating at the lowci' end of the shovel in advance of cach descending wing, substantially as d'csgribed.

18. In an automatic shoveling machine,

an inclined shovel, in combination with a for actuating said mechanism, means be' neath the shovel at the lower end of said shaft for rotating the saine, and a kicker at the lower end of said shovel and actuated by said means, substantially as described.

20. In an automatic shoveling machine, an inclined concave shovel or shoe, in combination with a ccntrall) located forwardly inclined shaft therein, al transverse shaft beneath the shovel for driving said inclined shaft means behind the shovel for actuating- 7 b said transverse shaft, and a suitable rotor mounted upon said inclined shaft, substantially as described.

21. In an automatic shoveling machine, a wheeled frame, in combination with a forwardly inclined shoe or shovel proper rigidly attached to and carried by said frame, means for raising and lowering said frame on its carrying wheels to adjust said shoe, an inclined coiiveyer on said frame, extending from said shoe to a higher point, a suitable rotor operable upon said sioe, and means upon said fi'aiiic for driving said rotor and said convcyer, substantially as described.

22. In an automatic shoveling machine, a wheeled frame, in combination with an ii-icliiicd shoe or shovel proper rigidly at taclicd to and carried by said frame, a winged rotor operable on said shoe, an inclined conveyer rigidly mounted on said frame and extending fiom said shoe to a higher .point above the rear end of said frame, and means on said frame for driving certain wheels thereof and for driving said rotor and said conveycr, substantially as described.

23. In an automatic shoveling machine, a

wheeled frame, in combination with an in-v clined concave shoe or shovel proper, a winged rotor fitting and opci'able on said shoe, said shoe being adapted to sweep the ground, an inclined conveyerinounted on said frame and extending from a point beiow the upper edge of said shoe to a pomt above the rear end of said frame, and means on4 said frame beneath said eonveyer for operating said rotor and conveyer and for propelling the machine as a whole, substantially as described.

24. .Xn automatic shoveling machine comprising a wheeled frame, in combinat-ion with an inclined concave shoe or shovel proper, an inclined conveyor extending upward therefrom and supported on said frame, a couelike winged rotor adapted to sweep material from the ground upon said shoe, and a rotor, conveyor and machine driving mechanism mounted on said frame beneath said conveycr, substantially as described.

25. An automatic shoveling machine comprising a. low horizontal frame, in combination with a steering wheel and traction wheels on which said frame is mounted, an inclinedA convcyer arranged on said frame and extending ciose to the ground at the forward end thereof, and means at said forward end for sweeping material upon the lower end of said conve ver substantiall as de scribed.

26. An automatic shoveling machine. comprising a low horizontal frame, in combination with a steering wheel and traction wheels on which said frame is lnountcd, an inclined conveyor arranged on said frame and extending close to the ground at the forward end thereof, means at said forward `end for sweeping material upon the lower end of said convever, and motor mechanism upon the frame beneath the conveyer for driving said means, said conveyer and said traction wheels, substantially as described.

27. An automatic shoveling machine comprising a wheeled frame, in combination with an inclined shoe. or shovel proper at the forward end of said frame, a winged rotor mounted for rotation upon an upright axis and adapted to sweep material upwardly upon one side of said shoe, and a troughing belt occupying an inclined position on said frame and having its lower end beneath the upper edge or end of said shoe, substantially as described.

2%. In an automatic shoveling machine, a, wheeled frame, in combination with a troughing conveyer belt occupying an inclined position on said frame and at the forward end extending close to the ground, a winged rotor revolnble on an upright axis and adapted to sweep the ground, for throwing material upon the lower end of said belt, and means upon said frame for driving said rotor and said conveyer at different speeds, substantially as described.

'29. An automatic shoveling machine comprising a wheeled frame, in combination with .an inclined shoe or shovel proper at the forward end thereof, a winged rotor coacting with said shoe to slightly elcvtnaterial, an.

wheeled frame, in combination with an inclincd shoe or shovel proper at the forward end thereof, a winge( rotor coacting with said shoe, an inclined eonvever provided on said frame to receive material from said shoe, and means for driving said rotor and said conveycr either simultaneously or independently, substantially as described.

3l. In an automatic shoveling machine, a. wheeled frame, in combination with an 1ncliued shoe or shovel proper at the forward end thereof, a winged rotor coacting with said shoe, an inclined conveyor providcdon said frame to receive material from said shoe, means foi drlvmgsaxd conveyor at. two diti'crent speeds, and other means` for driving said rotor, substantially as described.

32. In an automatic shoveling machine, a wheeled frame, in combination with an inclined shoe or shovel proper at the forward end of said frame, a winged rotor coacting with said lshoe, a eonveyer for elevating material from the shoe, a motor, means for connecting the same with said conveyer, a gear reduc-tion train connecting the motor with said rotor, and a slippable clutch interposed in said train near the motor, substantially as described. d 33. In an automatic shoveling machine, a wheeled frame, in combination with an inclined lshoe or shovel proper at the forward end of said frame, a winged rotor coacting with said shoe, an inclined conveyor upon said frame to receive material from said shoe, a motor mounted upon the rear end of said frame and adapted to drivesaid rotor, said conveyer and the machine as a whole, and means at the rear end of said frame for steering the machine and for controlling the ac.- tion of its parts, substantially as described.

34. In an automatic shoveling machine, a wheeled frame, in combination with digging and elevating means provided thereon, a. motor on the frame for driving said means, a,

ditierential transmission shaft on the frame and connected with certain of the wheels thereof, gearing for driving said shaft, and means for coupling the same to said motor, substantially as described.

35. Inan automatic shoveling machine, a wheeled frame, in combination with an in' clincd shoe or shovel proper at the forward end thereof, a winged rotor coacting with said slice, a belt. conveyer and its frame of less width than the first-mentioned frame and occupying an inclined position thereon to receive material from said shoe, a motor and gearing upon the rear end'of the frame `for driving said rotor and said conveyer and for moving the machine as a whole, and means u )on the frame at the side of said conveyer whereby an operator 'riding upon the frame may control the action of the machine and its parts, substantially as described.

36. In an automatic shoveling machine, an elongated frame, ir: combination with an inclined shoe or shovel proper at the forward end thereof, a winged rotor mounted upon and coacting with said shoe, an inclined conveyer arranged upon said frame to receive material froin said shoe, traction wheels adjacent to said shoe, means upon said frame for driving said traction wheels, said rotor and said conveyor simultaneously' and at different times, and a steering wheel at the4 rear end of said frame, substantially as described.

37. Iii an automatic slioveliiig machine, a

frame, in combination with an inclined concave shoe or shovel proper, an iiielinedconveyer to receive material therefrom, wings or pocket-forming sides extending from the shoe over the lower end of said coiiveyer, and a winged rot-or conforming to the shape of said shoe and coaeting therewith to elevate 'material to said conveyor, substantially as described.

3S. In an automatic slioveliiig machine, a frame, in combination with an inclined shoe oi' shovel proper, a winged rotor conforming tothe shape thereof and coact-ing therewith ei'idless conveyor, in combination with an inclined winged member revoluble on an uprightshaft for sweeping loose material from the ground. iipward to said conveyerand means for driving said conveyor and said ro.

tary member at diterent speeds and for stopping said rotor while the conveyer remains in operation, substantially as described.

stl. In a machine of the class described, an endless conveyor, in combination with a rotary shovel mounted on an upright axis and provided with a plurality of detachalile wings adapted to sweep the ground for gath-v mounted for cooperation with said shoe, anv

endless conveyor extending beneath the upper edge of said shoe and iii-cans for driving said shovel and said conveyor, substantially as described.

43. In a machine of the class described, a frame in combination with a yshoe attached to the forward end thereof, a rotary feeder mounted for cooperation` with said shoe, an endless eoiiveyer, means for raising and lowering the forward end of the machine, and means for driving said coniv'eyervand said feeder, substantially as described.

#14. In a machine of the class described, an endless conveyor and a winged rotor, in combination with means for driving the same independently of each other, and means for varying the speed of the conveyor, while the rotor is in operation, substantially as described.

In testimony whereof, I have hereunto set my hand, this 22nd day of October, 1906, in the presence of two subscribing witnesses.

CHARLES GILBERT HMVLEY.

IVitnesses: F. G. Kivieii'r, M. SIMON. 

